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impregnable

/im'pregnәbl/

GRE英语词汇

📖 中文释义

a. 无法攻取的, 坚强不屈的, 驳不倒的

📘 English Definition（英文释义）

s. immune to attack; incapable of being tampered with
s. incapable of being overcome, challenged or refuted

← impregnability impregnableness →